Hydro-Pneumatic Fenders with 65:35 Water-to-Air Ratio for Submarine
Price:
Negotiable
MOQ:
1pc
Delivery Time:
2~3 weeks
Brand:
DOOWIN MARINE
Product Description
Hydro-Pneumatic Fenders
Hydro-pneumatic fenders are designed for contact with vessels below the water line, including submarines, and can also be used for vessel-to-vessel applications. These fenders are partially filled with water and ballasted to float vertically. Performance can be precisely tuned by adjusting the water-to-air ratio and initial pressure.
Each hydro-pneumatic fender is customized based on submarine type or class, considering factors such as water-air ratio, hull shape, berthing type, energy absorption requirements, and jetty design. A detailed case-specific study is strongly recommended for optimal performance.
Key Features
Robust Construction: Puncture-resistant materials for harsh marine environments
Modular Installation: Upper/lower flange openings for efficient water cycling
Fail-Safe Design: Integrated pressure relief valve prevents overcompression
Applications
Military: Naval submarines, semi-submersible platforms
Commercial: High-speed ferries, offshore rigs
Technical Specifications
| Model | Air Filled (No Water) | Partially Water Filled (65:35) | ||||
|---|---|---|---|---|---|---|
| Energy (kNm) | Reaction (kN) | Water:Air | Energy (kNm) | Reaction (kN) | ||
| HPF 1700x7200 | 566 | 1774 | 0:100 | 135 | 599 | |
| HPF 2000x6000 | 653 | 1731 | 0:100 | 157 | 587 | |
| HPF 2500x5500 | 937 | 1996 | 0:100 | 225 | 673 | |
| HPF 3300x6500 | 1932 | 3106 | 0:100 | 622 | 1222 | |
| HPF 3300x10500 | 3151 | 5067 | 0:100 | 595 | 1250 | |
Note: Performance specifications are based on an initial pressure of 7.1 psi. Actual performance may vary depending on vessel hull shape, water-to-air ratio, gas mixture (e.g., N2), and initial pressure.
Installation Details
Hydro-pneumatic fenders feature openings at both upper and lower flanges to facilitate water charging and discharging. The integrated pressure relief valve ensures controlled air release during overcompression events, maintaining system safety.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
Location
Xiazhuang Industry Park, Chengyang, Qingdao, China
Contact Person
Xiang Sun